Marine sterndrive engine



FIG. 1 is a perspective view of a marine sterndrive engine showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a front elevational view thereof. 

The ornamental design for a marine sterndrive engine, as shown and described. 